Dumping-scow.



Patented Aug. 22, |899. J. J. HASLAM.

DUMPING scow. (Application med Apr. 27, 189B.) (No Model.)

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UNITED STATES PATENT E-EICE,

lJOHN JAMES HASLAM, OF AVONDALE, NEW ZEALAND.

DUMPING-SCOW.

-SPECIFICATON forming part of Letters Patent No. 631,637, dated August22, 1899.

Application led April 27, 1898. Serial No. 678,974. (No model.)

To @ZZ whom/.it may concern,.-

Be it known that I, JOHN J AMES I-IAsLAM, builder, a subject of HerMajesty the Queen of the United Kingdom of Great Britain and Ireland,and a resident of Avondale, near the city of Auckland, in thevProvincial District of Auckland and Colony of New Zealand, haveinvented certain new and useful Improvements in Dumping-Scows, of whichthe fol lowing is a specification.

My invention relates to dumping-scows, and has for its object to providea scow which shall be self-discharging.

'.lo this end the invention comprises Atwo water-tight structuresconnected, as hereinafter described, so that they form a single scowaording a hopper in the center which can be used to carry stones, earth,or any other form of load desired. When loaded, the scow can be iioatedto any desired position and the fastenings holding the two halves of thescow together being released the two parts will open out and the loadwill be perm'itted to fall by gravity into the water. The parts orstructures being brought together and fastened the scow will again beready for loading.

In the accompanying drawings, illustrating the invention, Figure l is across-section of the scow when closed. Fig. 2 is a cross-section of thescow when open. Fig. 3 is a plan view of the scow in a closed position,and Fig. 4 isa similar view of the scow in an opened position.

The scow consists of two structures A and B, each water-tight andaffording a floating vessel and so held together, as shown in theseveral figures and as hereinafter described, that when closed they'form one scow having a central hopper, one-half of said hopper beingcarried by each vessel A B, and said halves of the hopper being denoted,respectively, by the letters O D. When closed, the structures A and Bare held together at the bottom beneath the hopper C D by a series ot'hooks E,

pivotally mounted on a shaft E', which shaft is -held or bolted to thestructure A by any convenient means. The hooks E are adapted to engage aroller F, attached to the structure B. On the deck of the scow thestruc'- tures A and B are held together by crossbcams K, as shown inFigs. 3 and 4, which cross-beams may be locked, if desired, at oppositeends by means of dowels, pins, flanges, or the like. To allow the scowto open so as to discharge its load, the hooks E, attached to the shaftE', are lifted od the roller F by two rods G, passing up water-tighttubes H, which rods can be worked by any suitable mechanical means. Theroller F is loosely mounted in frames or bearings F on the vessel B, sothat when the hooks E are lifted said rod will rise with them until thehooks are released, when it will fall back into its original positionready for being gripped when the scow is again closed. When the hooksare thus lifted, the weight of the contents of the hopper C D, acting onthe inclined surfaces thereof, causes the structures A and B to separateand assume the position shown in Figs. 2 and 4. The gates or girders J,having hinges attached at their opposite ends to the two structures Aand B, hold said struc'- tures rigid and upright and parallel to eachother. Stability is further secured by the cross-beams K, which, beingconnected in their centers to the gates or girders J, move over thedecks on wheels mounted at opposite ends of said beams, said wheelsrunning on curved rails K', secured to the decks, and are then locked byany means found suitable. These cross-beams K are preferably fitteddiagonally and may be used without the gates or girders J, which may bedispensed with,

in which case the ends of these cross-beams will be pinned `or pivotedto the deck, two on each structure, and the wheelsand rails will not. bewanted, as the beams K, being pivoted, will move with the two structuresas they open out. Stops, with springs or other attachments, may be setat N, so that when the scow is open fixed chains or ropes N may beconnected thereto, if desired, to hold the structures A and B at anyrequired distance apart, as shown in Fig. 4. A winch (indicated by L) isfixed to each structure and has a chain or rope fastened on the drum IOOit is desired to close the scow the winches are unreleased and the hooksattached to the other or opposite structure are unfastened and left freeuntil again required.

The structures A and B and all the parts herein described may be builtof iron, wood,

15 or other material found suitable in each case.

Having thus fully described my invention, what I claim as new isl. Adumping-scow comprising two separable water-tight structures affording'between zo them a hopper, means connecting said strueturcs and limitingthe movements thereof relative to each other, a roller loosely mountedin frames carried by one structure, hooks pivotally mounted on theopposite structure and adapted to engage said roller to hold thestructures together, and means for operating said hooks, substantiallyas described.

2. A dumping-500W comprising two separable water-tightstructures'aiording between them a hopper, gates or girders pivotallyconnected at opposite ends to said structures and operating as describedand cross-beams carried by said gates or girders and having oppositeends engaging the respective struetures, the combination operatingsubstantially as described.

JOHN JAMES HASLAM.

lVitnesses:

VGEORGE WILLIAM BAsLEY,

G. W. GAsLEY, PERCY ALLAN MATTHEws.

